8687656890 has 64 divisors (see below), whose sum is σ = 25273192320. Its totient is φ = 2106097920.

The previous prime is 8687656883. The next prime is 8687656903. The reversal of 8687656890 is 986567868.

8687656890 is a `hidden beast` number, since 8 + 68 + 7 + 6 + 568 + 9 + 0 = 666.

It is a super-3 number, since 3×8687656890³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1459599 + ... + 1465538.

It is an arithmetic number, because the mean of its divisors is an integer number (394893630).

Almost surely, 2^8687656890 is an apocalyptic number.

8687656890 is an abundant number, since it is smaller than the sum of its proper divisors (16585535430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8687656890 is a wasteful number, since it uses less digits than its factorization.

8687656890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925164 (or 2925158 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The square root of 8687656890 is about 93207.6010312464. The cubic root of 8687656890 is about 2055.7370045502.

The spelling of 8687656890 in words is "eight billion, six hundred eighty-seven million, six hundred fifty-six thousand, eight hundred ninety".